Transformers 7 Begin Production July 4 in Montreal, Film Set in 1992?

A leak of a potential extras casting call notice to TransformersFR.com provides a filming location and possible time frame of Transformers 7. The "Figuration Memo" (never heard that phrase before) is seeking extras to film on July 4, 7, 12, and 13 in Montreal, Canada who are willing to wear 1992 clothing and have hair shaved to match as necessary.

If the film is set in 1992, than it would make it a likely sequel to Bumblebee movie rather than a continuation or reset of the Bay films. Depending on the story, it could be a sequel only in how it lands on the timeline, doesn't necessary mean its a continuation or in relation to that story or anything in the Bayverse. It would be easy to have it stand as its own film to be inserted or ignored in continuity based on future films as Hasbro sees fit simply by character choices and not making any references to any previous film.

To the left is the image posted by the site, below is the google translate of its text. E77 might be the production code of the film. 

Figuration E77 | Hello, 

We are looking for extras for E77 for several dates for different things.

***** We are in 1992, doc very possible that you are asked to change or shave your facial hair with a few exceptions, but you should be prepared to do so just in case. 

Need to approve updated photos given the time (92) so please attach an updated photo of you too. ****

shooting date July 4 Montreal

Or

shooting date July 7 Montreal

Or

+ shooting date July 12 and 13 (2 days that go together) Montreal

Merci